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Dew and Spray Volume Effect on Glyphosate Efficacy

Published online by Cambridge University Press:  20 January 2017

M. Kogan  and
M. Zúñiga
M. Kogan*
Affiliation:
Pontificia Universidad Católica de Chile, School of Agriculture and Forestry. Casilla 306, Correo 22 Santiago, Chile
M. Zúñiga
Affiliation:
Pontificia Universidad Católica de Chile, School of Agriculture and Forestry. Casilla 306, Correo 22 Santiago, Chile
*
Corresponding author's E-mail: mkogan@puc.cl.
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Abstract

The influence of three simulated dew levels and 150, 300, and 450 L/ha spray volume on glyphosate control of oat plants was determined from pot experiments. Results showed that the effect of dew level on glyphosate efficacy was related to application volume. Glyphosate efficacy at the low and medium application volume (150 and 300 L/ha) was not affected by dew level. However, glyphosate efficacy decreased when applied at the high spray volume (450 L/ha), regardless of dew level. However, high dew level reduced efficacy only when glyphosate was applied at 450 L/ha.

Keywords

Glyphosateoat, Avena sativa L.Application volumeglyphosate activityfoliage water retentionfoliage free waterDAE, days after emergenceHDA, homogeneous dew area
Type
Notes
Information
Weed Technology , Volume 15 , Issue 3 , September 2001 , pp. 590 - 593
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

Behrens, R. 1977. Influence of dew on the phytoxicity of foliarly applied herbicides. Proc. North Cent. Weed Control Conf. 32:116.Google Scholar
Caseley, J. C. 1989. Variation in foliar pesticide performance attributable to humidity, dew and rain effects. Aspects Appl. Biol. (CAB Abstr.) 21: 215–225.Google Scholar
Caseley, J. C. and Coupland, D. 1985. Environmental and plant factors affecting glyphosate uptake, movement and activity. In Grossbard, E. and Atkinson, D., eds. The Herbicide Glyphosate. London: Butterworth. pp. 92–123.Google Scholar
Caseley, J. C., Coupland, D., and Simmons, R. C. 1975. The effect of precipitation on the control of Agropyron repens with glyphosate. Symposium on Status and Control of Grassweeds in Europe. Proc. Eur. Weed Res. Soc., Paris 1: 124–130.Google Scholar
Johnstone, D. 1973. Spreading and retention of pesticide sprays. In van Valkenburg, W., ed. Pesticide Formulations. New York: Marcel Dekker. pp. 343–386.Google Scholar
Kogan, M. and Bayer, E. D. 1996. Herbicide uptake as influenced by plant water status. Pestic. Biochem. Physiol. 56: 174–182.Google Scholar
Kudsk, P., Olesen, T., Jensen, K. P., and Kirknel, E. 1988. The influence of dew on the activity of various herbicides. Med. Fac. Landbouww. Rijksuniv. Gent. 53/3b. pp. 1289–1296.Google Scholar
Liu-Shuhua, R. A. Campbell, Liu, S. H., and Griffith, J. A. 1996. Efficacy of glyphosate on Pupulus tremuloides as affected by droplet size and spray volume. N. Z. J. For. 26: 1–2, 276-287.Google Scholar
Merrit, C. R. 1982. The influence of form of deposit on the phytotoxicity of MCP, paraquat and glyphosate applied as individual drops. Ann. Appl. Biol. 101: 527–532.Google Scholar
Messersmith, C. G., Christianson, K. M., and Thorsness, K. B. 1992. Influence of glyphosate rate, application date, and spray volume on cattail control. N. D. Farm Res. 49: 7–28.Google Scholar
Muro, J. 1991. Influencia del rocío y del volumen de caldo de aplicación en la eficacia de tres herbicidas de contacto. Córdoba: Actas Reunión Soc. Española de Malerbología. pp. 271–274.Google Scholar
Rambakudzibga, A. M. 1989. Effect of spray volume and additives on the activity of glyphosate on purple nutsedge (Cyperus rotundus L.) Zimbawue. J. Agric. Res. 27: 113–121.Google Scholar
Sandberg, L. C., Meggit, W. F., and Penner, D. 1978. Effect of diluent volume and calcium on glyphosate phytotoxicity. Weeds 28: 477–479.Google Scholar
Scotland, L. M. 1960. Experimental results relating to the coalescence of water drops with water surface. Discussion of the Faraday Soc. 30:72.Google Scholar
Slatyer, R. 1968. Environmental aspects of plant weather relationship. In Plant-Weather Relationship. 2nd ed. New York: Academic Press. pp. 40–46, 230-236.Google Scholar
Willard, T. R., Shilling, D. G., Haller, W. T., and Langeland, K. A. 1998. Physico-chemical factors influencing the control of torpedograss with glyphosate. J. Aquat. Plant Manage. 36: 11–15.Google Scholar